From: Garey Barrell 
Subject: Re: [drakelist] TR-3 PTO not working


Garey Barrell  made an utterence to the drakelist gang
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Jim -

Check the RV-3 "Jones" connector under the chassis.  There should be a 
jumper connected from Pin 2 to Pin 8.  This wire has to be removed to 
use the RV-3, but if the RV-3 is then disconnected the jumper has to be 
replaced or a dummy plug installed.

Check with an ohmmeter from Pin 7 of V2 (PTO Tube) to chassis.  It 
should read very low resistance (RF choke).

73, Garey - K4OAH
Atlanta

Drake C-Line Service Manual
http://hr99.home.mindspring.com/R-4C_Servicez/>



Jim Theisen wrote:

> Hi Folks
>  
> As I recover from back surgery. I am trying to revive my newly 
> purchased TR-3 rig.
> I am getting no frequency output from the PTO. The 6AU6 tube seems ok. 
> I am new at this and am checking Resistance and Voltage. Any help on 
> the best way to check for problems with the PTO would be appreciated.
>  
> 73
>  
> Jim WB8REH

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